This is a compatible replacement filter for the Honeywell FC40R1177 return grille filter. It has a MERV 10 efficiency rating and lasts approximately 6 months depending on use.
Nominal size: 24x30x4-3/8
Actual size (with header): 23-3/4 x 29-3/4 x 4-3/8
Also known as FC40R-1177.
The Magnet logo on this page signifies that this product is a factory direct replacement to the OEM branded filter.